code: def tril_indices(
      n_rows: int,
      n_cols: Optional[int] = None,
      k: int = 0,
      /,
      *,
      device: str,
  ) -> Tuple[(Union[(None, mx.ndarray.NDArray)], ...)]:
      raise IvyNotImplementedException()
  
file_path: ivy/ivy/functional/backends/mxnet/experimental/creation.py
imports: from typing import Union, Optional, Tuple
  import mxnet
  import numpy
  from ivy.utils.exceptions import IvyNotImplementedException
label_desc: Use image node_id 5 for calling a global function with example usage: tril_indices() without return types